Calculation method and system for the safety factor of the attachment node of the external climbing frame of the hydraulic climbing formwork

Abstract

The invention provides a method and system for calculating safety coefficients of attachment nodes of external lifting scaffolds of a hydraulic climbing formwork. The counterforce of the nodes of the external lifting scaffolds of the hydraulic climbing formwork is solved according to a parsing relationship, the maximum stress of the attachment nodes is obtained according to a linear relationship between the maximum stress of each attachment node and vertical and horizontal counterforce thereof, and the safety coefficients of the attachment nodes of each external lifting scaffold are further obtained. According to the method and the system, finite element analysis is not required to be performed on all the external lifting scaffolds in a super high-rise project to solve the counterforce of the attachment nodes, and the safety coefficients of the attachment nodes of all the external lifting scaffolds can be rapidly and accurately calculated.

Description

technical field [0001] The invention relates to a calculation method and system for the safety factor of the attachment node of the external climbing frame of the hydraulic climbing formwork Background technique [0002] Hydraulic climbing formwork equipment is widely used in super high-rise core tube construction. The hydraulic climbing formwork equipment is mainly composed of two parts: the outer climbing frame and the inner cylinder frame. Whether these two parts can work safely during the construction process is a key concern in the actual project. [0003] As far as the external climbing frame of the hydraulic climbing formwork is concerned, under normal working conditions, the frame body is attached to the structure sequentially through nodes such as hooks, climbing shoes, wall-attached supports, and anchor bolts. Therefore, the safety of these attachment nodes is the key to ensure the normal operation of the hydraulic climbing formwork external climbing frame. [00...

AI Technical Summary

Problems solved by technology

[0008] The selection of a typical external climbing frame in conventional practice (such as the external climbing frame with the largest horizontal width) is very empirical, which leads to the fact that the reaction force of the attachment node obtained from the overall force analysis cannot envelop the worst case of the project, so that it cannot Accurately control the safety of all the attachment nodes of the external climbing frame in the project, causing potential safety hazards

However, modeling all external climbing frames one by one and conducting overall force analysis will add a lot of work, and will also greatly increase the workload of calculation and analysis

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